/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package websocket.snake;

public class Location
{

	public static final int GRID_SIZE = 10;

	public static final int PLAYFIELD_HEIGHT = 480;

	public static final int PLAYFIELD_WIDTH = 640;

	public int x;

	public int y;

	public Location(int x, int y)
	{
		this.x = x;
		this.y = y;
	}

	public Location getAdjacentLocation(Direction direction)
	{
		switch (direction)
		{
			case NORTH:
				return new Location(this.x, this.y - Location.GRID_SIZE);
			case SOUTH:
				return new Location(this.x, this.y + Location.GRID_SIZE);
			case EAST:
				return new Location(this.x + Location.GRID_SIZE, this.y);
			case WEST:
				return new Location(this.x - Location.GRID_SIZE, this.y);
			case NONE:
				// fall through
			default:
				return this;
		}
	}

	@Override
	public boolean equals(Object o)
	{
		if (this == o)
		{
			return true;
		}
		if (o == null || getClass() != o.getClass())
		{
			return false;
		}

		Location location = (Location)o;

		if (this.x != location.x)
		{
			return false;
		}
		if (this.y != location.y)
		{
			return false;
		}

		return true;
	}

	@Override
	public int hashCode()
	{
		int result = this.x;
		result = 31 * result + this.y;
		return result;
	}
}
